content: /*
   * 支付宝开放平台API
   * 支付宝开放平台v3协议文档
   *
   * The version of the OpenAPI document: 2025-08-26
   * 
   *
   * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
   * https://openapi-generator.tech
   * Do not edit the class manually.
   */
  
  
  package com.alipay.v3.model;
  
  import java.util.Objects;
  import java.util.Arrays;
  import com.alipay.v3.model.GoodsDetailDTO;
  import com.alipay.v3.model.VoucherUseDetailInfo;
  import com.google.gson.TypeAdapter;
  import com.google.gson.annotations.JsonAdapter;
  import com.google.gson.annotations.SerializedName;
  import com.google.gson.stream.JsonReader;
  import com.google.gson.stream.JsonWriter;
  import io.swagger.annotations.ApiModel;
  import io.swagger.annotations.ApiModelProperty;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  import com.google.gson.JsonArray;
  import com.google.gson.JsonDeserializationContext;
  import com.google.gson.JsonDeserializer;
  import com.google.gson.JsonElement;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParseException;
  import com.google.gson.TypeAdapterFactory;
  import com.google.gson.reflect.TypeToken;
  
  import java.lang.reflect.Type;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Set;
  
  import com.alipay.v3.JSON;
  
  /**
   * AlipayMarketingActivityOrdervoucherUseModel
   */
  @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
  public class AlipayMarketingActivityOrdervoucherUseModel {
    public static final String SERIALIZED_NAME_BIZ_DT = "biz_dt";
    @SerializedName(SERIALIZED_NAME_BIZ_DT)
    private String bizDt;
  
    public static final String SERIALIZED_NAME_GOODS_DETAIL = "goods_detail";
    @SerializedName(SERIALIZED_NAME_GOODS_DETAIL)
    private List<GoodsDetailDTO> goodsDetail = null;
  
    public static final String SERIALIZED_NAME_MERCHANT_ACCESS_MODE = "merchant_access_mode";
    @SerializedName(SERIALIZED_NAME_MERCHANT_ACCESS_MODE)
    private String merchantAccessMode;
  
    public static final String SERIALIZED_NAME_OUT_BIZ_NO = "out_biz_no";
    @SerializedName(SERIALIZED_NAME_OUT_BIZ_NO)
    private String outBizNo;
  
    public static final String SERIALIZED_NAME_REAL_SHOP_ID = "real_shop_id";
    @SerializedName(SERIALIZED_NAME_REAL_SHOP_ID)
    private String realShopId;
  
    public static final String SERIALIZED_NAME_STORE_ID = "store_id";
    @SerializedName(SERIALIZED_NAME_STORE_ID)
    private String storeId;
  
    public static final String SERIALIZED_NAME_TOTAL_FEE = "total_fee";
    @SerializedName(SERIALIZED_NAME_TOTAL_FEE)
    private String totalFee;
  
    public static final String SERIALIZED_NAME_TRADE_CHANNEL = "trade_channel";
    @SerializedName(SERIALIZED_NAME_TRADE_CHANNEL)
    private String tradeChannel;
  
    public static final String SERIALIZED_NAME_TRADE_NO = "trade_no";
    @SerializedName(SERIALIZED_NAME_TRADE_NO)
    private String tradeNo;
  
    public static final String SERIALIZED_NAME_VOUCHER_USE_DETAIL_INFO = "voucher_use_detail_info";
    @SerializedName(SERIALIZED_NAME_VOUCHER_USE_DETAIL_INFO)
    private VoucherUseDetailInfo voucherUseDetailInfo;
  
    public AlipayMarketingActivityOrdervoucherUseModel() { 
    }
  
    public AlipayMarketingActivityOrdervoucherUseModel bizDt(String bizDt) {
      
      this.bizDt = bizDt;
      return this;
    }
  
     /**
     * 外部优惠券的核销时间，用于流水记录。 格式为：yyyy-MM-dd HH:mm:ss
     * @return bizDt
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2017-01-01 00:00:01", value = "外部优惠券的核销时间，用于流水记录。 格式为：yyyy-MM-dd HH:mm:ss")
  
    public String getBizDt() {
      return bizDt;
    }
  
  
    public void setBizDt(String bizDt) {
      this.bizDt = bizDt;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel goodsDetail(List<GoodsDetailDTO> goodsDetail) {
      
      this.goodsDetail = goodsDetail;
      return this;
    }
  
    public AlipayMarketingActivityOrdervoucherUseModel addGoodsDetailItem(GoodsDetailDTO goodsDetailItem) {
      if (this.goodsDetail == null) {
        this.goodsDetail = new ArrayList<>();
      }
      this.goodsDetail.add(goodsDetailItem);
      return this;
    }
  
     /**
     * 商品明细信息
     * @return goodsDetail
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "商品明细信息")
  
    public List<GoodsDetailDTO> getGoodsDetail() {
      return goodsDetail;
    }
  
  
    public void setGoodsDetail(List<GoodsDetailDTO> goodsDetail) {
      this.goodsDetail = goodsDetail;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel merchantAccessMode(String merchantAccessMode) {
      
      this.merchantAccessMode = merchantAccessMode;
      return this;
    }
  
     /**
     * 商户接入模式
     * @return merchantAccessMode
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "AGENCY_MODE", value = "商户接入模式")
  
    public String getMerchantAccessMode() {
      return merchantAccessMode;
    }
  
  
    public void setMerchantAccessMode(String merchantAccessMode) {
      this.merchantAccessMode = merchantAccessMode;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel outBizNo(String outBizNo) {
      
      this.outBizNo = outBizNo;
      return this;
    }
  
     /**
     * 外部业务单号，用作幂等控制。    幂等作用：  参数不变的情况下，再次请求返回与上一次相同的结果。    外部接入方需保证业务单号唯一。
     * @return outBizNo
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "20170101000001654bb46ba", value = "外部业务单号，用作幂等控制。    幂等作用：  参数不变的情况下，再次请求返回与上一次相同的结果。    外部接入方需保证业务单号唯一。")
  
    public String getOutBizNo() {
      return outBizNo;
    }
  
  
    public void setOutBizNo(String outBizNo) {
      this.outBizNo = outBizNo;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel realShopId(String realShopId) {
      
      this.realShopId = realShopId;
      return this;
    }
  
     /**
     * 用户核销优惠券的代运营商业关系门店id，调用接口alipay.business.relation.shop.create创建门店返回的real_shop_id。 限制: 传入的门店id必须是创建商家券voucher_use_rule. voucher_available_scope.  order_voucher_available_shop对象中real_shop_ids中的门店id
     * @return realShopId
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2018051000502000000011111111", value = "用户核销优惠券的代运营商业关系门店id，调用接口alipay.business.relation.shop.create创建门店返回的real_shop_id。 限制: 传入的门店id必须是创建商家券voucher_use_rule. voucher_available_scope.  order_voucher_available_shop对象中real_shop_ids中的门店id")
  
    public String getRealShopId() {
      return realShopId;
    }
  
  
    public void setRealShopId(String realShopId) {
      this.realShopId = realShopId;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel storeId(String storeId) {
      
      this.storeId = storeId;
      return this;
    }
  
     /**
     * 用户核销优惠券的支付门店id,调用接口&lt;a href&#x3D;\&quot;https://opendocs.alipay.com/open/03s3jk?pathHash&#x3D;04312530&amp;scene&#x3D;common\&quot; target&#x3D;\&quot;_blank\&quot;&gt;ant.merchant.expand.shop.create&lt;/a&gt;创建门店返回的门店id。 限制: 传入的门店id必须是创建商家券voucher_use_rule. voucher_available_scope.  order_voucher_available_shop对象中shop_ids中的门店id
     * @return storeId
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2018051000502000000011111111", value = "用户核销优惠券的支付门店id,调用接口<a href=\"https://opendocs.alipay.com/open/03s3jk?pathHash=04312530&scene=common\" target=\"_blank\">ant.merchant.expand.shop.create</a>创建门店返回的门店id。 限制: 传入的门店id必须是创建商家券voucher_use_rule. voucher_available_scope.  order_voucher_available_shop对象中shop_ids中的门店id")
  
    public String getStoreId() {
      return storeId;
    }
  
  
    public void setStoreId(String storeId) {
      this.storeId = storeId;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel totalFee(String totalFee) {
      
      this.totalFee = totalFee;
      return this;
    }
  
     /**
     * 订单总金额
     * @return totalFee
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "999.99", value = "订单总金额")
  
    public String getTotalFee() {
      return totalFee;
    }
  
  
    public void setTotalFee(String totalFee) {
      this.totalFee = totalFee;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel tradeChannel(String tradeChannel) {
      
      this.tradeChannel = tradeChannel;
      return this;
    }
  
     /**
     * 交易渠道。
     * @return tradeChannel
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "ZHIFUBAO_TRADE_CHANNEL", value = "交易渠道。")
  
    public String getTradeChannel() {
      return tradeChannel;
    }
  
  
    public void setTradeChannel(String tradeChannel) {
      this.tradeChannel = tradeChannel;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel tradeNo(String tradeNo) {
      
      this.tradeNo = tradeNo;
      return this;
    }
  
     /**
     * 该交易在支付宝系统中的交易流水号。 注意：若用户使用支付宝为交易的渠道，本参数必填。
     * @return tradeNo
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2021042322001426261436764012", value = "该交易在支付宝系统中的交易流水号。 注意：若用户使用支付宝为交易的渠道，本参数必填。")
  
    public String getTradeNo() {
      return tradeNo;
    }
  
  
    public void setTradeNo(String tradeNo) {
      this.tradeNo = tradeNo;
    }
  
  
    public AlipayMarketingActivityOrdervoucherUseModel voucherUseDetailInfo(VoucherUseDetailInfo voucherUseDetailInfo) {
      
      this.voucherUseDetailInfo = voucherUseDetailInfo;
      return this;
    }
  
     /**
     * Get voucherUseDetailInfo
     * @return voucherUseDetailInfo
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "")
  
    public VoucherUseDetailInfo getVoucherUseDetailInfo() {
      return voucherUseDetailInfo;
    }
  
  
    public void setVoucherUseDetailInfo(VoucherUseDetailInfo voucherUseDetailInfo) {
      this.voucherUseDetailInfo = voucherUseDetailInfo;
    }
  
    /**
     * A container for additional, undeclared properties.
     * This is a holder for any undeclared properties as specified with
     * the 'additionalProperties' keyword in the OAS document.
     */
    private Map<String, Object> additionalProperties;
  
    /**
     * Set the additional (undeclared) property with the specified name and value.
     * If the property does not already exist, create it otherwise replace it.
     *
     * @param key name of the property
     * @param value value of the property
     * @return the AlipayMarketingActivityOrdervoucherUseModel instance itself
     */
    public AlipayMarketingActivityOrdervoucherUseModel putAdditionalProperty(String key, Object value) {
      if (this.additionalProperties == null) {
          this.additionalProperties = new HashMap<String, Object>();
      }
      this.additionalProperties.put(key, value);
      return this;
    }
  
    /**
     * Return the additional (undeclared) property.
     *
     * @return a map of objects
     */
    public Map<String, Object> getAdditionalProperties() {
      return additionalProperties;
    }
  
    /**
     * Return the additional (undeclared) property with the specified name.
     *
     * @param key name of the property
     * @return an object
     */
    public Object getAdditionalProperty(String key) {
      if (this.additionalProperties == null) {
          return null;
      }
      return this.additionalProperties.get(key);
    }
  
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      AlipayMarketingActivityOrdervoucherUseModel alipayMarketingActivityOrdervoucherUseModel = (AlipayMarketingActivityOrdervoucherUseModel) o;
      return Objects.equals(this.bizDt, alipayMarketingActivityOrdervoucherUseModel.bizDt) &&
          Objects.equals(this.goodsDetail, alipayMarketingActivityOrdervoucherUseModel.goodsDetail) &&
          Objects.equals(this.merchantAccessMode, alipayMarketingActivityOrdervoucherUseModel.merchantAccessMode) &&
          Objects.equals(this.outBizNo, alipayMarketingActivityOrdervoucherUseModel.outBizNo) &&
          Objects.equals(this.realShopId, alipayMarketingActivityOrdervoucherUseModel.realShopId) &&
          Objects.equals(this.storeId, alipayMarketingActivityOrdervoucherUseModel.storeId) &&
          Objects.equals(this.totalFee, alipayMarketingActivityOrdervoucherUseModel.totalFee) &&
          Objects.equals(this.tradeChannel, alipayMarketingActivityOrdervoucherUseModel.tradeChannel) &&
          Objects.equals(this.tradeNo, alipayMarketingActivityOrdervoucherUseModel.tradeNo) &&
          Objects.equals(this.voucherUseDetailInfo, alipayMarketingActivityOrdervoucherUseModel.voucherUseDetailInfo)&&
          Objects.equals(this.additionalProperties, alipayMarketingActivityOrdervoucherUseModel.additionalProperties);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(bizDt, goodsDetail, merchantAccessMode, outBizNo, realShopId, storeId, totalFee, tradeChannel, tradeNo, voucherUseDetailInfo, additionalProperties);
    }
  
    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder();
      sb.append("class AlipayMarketingActivityOrdervoucherUseModel {\n");
      sb.append("    bizDt: ").append(toIndentedString(bizDt)).append("\n");
      sb.append("    goodsDetail: ").append(toIndentedString(goodsDetail)).append("\n");
      sb.append("    merchantAccessMode: ").append(toIndentedString(merchantAccessMode)).append("\n");
      sb.append("    outBizNo: ").append(toIndentedString(outBizNo)).append("\n");
      sb.append("    realShopId: ").append(toIndentedString(realShopId)).append("\n");
      sb.append("    storeId: ").append(toIndentedString(storeId)).append("\n");
      sb.append("    totalFee: ").append(toIndentedString(totalFee)).append("\n");
      sb.append("    tradeChannel: ").append(toIndentedString(tradeChannel)).append("\n");
      sb.append("    tradeNo: ").append(toIndentedString(tradeNo)).append("\n");
      sb.append("    voucherUseDetailInfo: ").append(toIndentedString(voucherUseDetailInfo)).append("\n");
      sb.append("    additionalProperties: ").append(toIndentedString(additionalProperties)).append("\n");
      sb.append("}");
      return sb.toString();
    }
  
    /**
     * Convert the given object to string with each line indented by 4 spaces
     * (except the first line).
     */
    private String toIndentedString(Object o) {
      if (o == null) {
        return "null";
      }
      return o.toString().replace("\n", "\n    ");
    }
  
  
    public static HashSet<String> openapiFields;
    public static HashSet<String> openapiRequiredFields;
  
    static {
      // a set of all properties/fields (JSON key names)
      openapiFields = new HashSet<String>();
      openapiFields.add("biz_dt");
      openapiFields.add("goods_detail");
      openapiFields.add("merchant_access_mode");
      openapiFields.add("out_biz_no");
      openapiFields.add("real_shop_id");
      openapiFields.add("store_id");
      openapiFields.add("total_fee");
      openapiFields.add("trade_channel");
      openapiFields.add("trade_no");
      openapiFields.add("voucher_use_detail_info");
  
      // a set of required properties/fields (JSON key names)
      openapiRequiredFields = new HashSet<String>();
    }
  
   /**
    * Validates the JSON Object and throws an exception if issues found
    *
    * @param jsonObj JSON Object
    * @throws IOException if the JSON Object is invalid with respect to AlipayMarketingActivityOrdervoucherUseModel
    */
    public static void validateJsonObject(JsonObject jsonObj) throws IOException {
        if (jsonObj == null) {
          if (AlipayMarketingActivityOrdervoucherUseModel.openapiRequiredFields.isEmpty()) {
            return;
          } else { // has required fields
            throw new IllegalArgumentException(String.format("The required field(s) %s in AlipayMarketingActivityOrdervoucherUseModel is not found in the empty JSON string", AlipayMarketingActivityOrdervoucherUseModel.openapiRequiredFields.toString()));
          }
        }
        if (jsonObj.get("biz_dt") != null && !jsonObj.get("biz_dt").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `biz_dt` to be a primitive type in the JSON string but got `%s`", jsonObj.get("biz_dt").toString()));
        }
        JsonArray jsonArraygoodsDetail = jsonObj.getAsJsonArray("goods_detail");
        if (jsonArraygoodsDetail != null) {
          // ensure the json data is an array
          if (!jsonObj.get("goods_detail").isJsonArray()) {
            throw new IllegalArgumentException(String.format("Expected the field `goods_detail` to be an array in the JSON string but got `%s`", jsonObj.get("goods_detail").toString()));
          }
  
          // validate the optional field `goods_detail` (array)
          for (int i = 0; i < jsonArraygoodsDetail.size(); i++) {
            GoodsDetailDTO.validateJsonObject(jsonArraygoodsDetail.get(i).getAsJsonObject());
          };
        }
        if (jsonObj.get("merchant_access_mode") != null && !jsonObj.get("merchant_access_mode").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `merchant_access_mode` to be a primitive type in the JSON string but got `%s`", jsonObj.get("merchant_access_mode").toString()));
        }
        if (jsonObj.get("out_biz_no") != null && !jsonObj.get("out_biz_no").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `out_biz_no` to be a primitive type in the JSON string but got `%s`", jsonObj.get("out_biz_no").toString()));
        }
        if (jsonObj.get("real_shop_id") != null && !jsonObj.get("real_shop_id").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `real_shop_id` to be a primitive type in the JSON string but got `%s`", jsonObj.get("real_shop_id").toString()));
        }
        if (jsonObj.get("store_id") != null && !jsonObj.get("store_id").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `store_id` to be a primitive type in the JSON string but got `%s`", jsonObj.get("store_id").toString()));
        }
        if (jsonObj.get("total_fee") != null && !jsonObj.get("total_fee").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `total_fee` to be a primitive type in the JSON string but got `%s`", jsonObj.get("total_fee").toString()));
        }
        if (jsonObj.get("trade_channel") != null && !jsonObj.get("trade_channel").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `trade_channel` to be a primitive type in the JSON string but got `%s`", jsonObj.get("trade_channel").toString()));
        }
        if (jsonObj.get("trade_no") != null && !jsonObj.get("trade_no").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `trade_no` to be a primitive type in the JSON string but got `%s`", jsonObj.get("trade_no").toString()));
        }
        // validate the optional field `voucher_use_detail_info`
        if (jsonObj.getAsJsonObject("voucher_use_detail_info") != null) {
          VoucherUseDetailInfo.validateJsonObject(jsonObj.getAsJsonObject("voucher_use_detail_info"));
        }
    }
  
    public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
      @SuppressWarnings("unchecked")
      @Override
      public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
         if (!AlipayMarketingActivityOrdervoucherUseModel.class.isAssignableFrom(type.getRawType())) {
           return null; // this class only serializes 'AlipayMarketingActivityOrdervoucherUseModel' and its subtypes
         }
         final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
         final TypeAdapter<AlipayMarketingActivityOrdervoucherUseModel> thisAdapter
                          = gson.getDelegateAdapter(this, TypeToken.get(AlipayMarketingActivityOrdervoucherUseModel.class));
  
         return (TypeAdapter<T>) new TypeAdapter<AlipayMarketingActivityOrdervoucherUseModel>() {
             @Override
             public void write(JsonWriter out, AlipayMarketingActivityOrdervoucherUseModel value) throws IOException {
               JsonObject obj = thisAdapter.toJsonTree(value).getAsJsonObject();
               obj.remove("additionalProperties");
               // serialize additonal properties
               if (value.getAdditionalProperties() != null) {
                 for (Map.Entry<String, Object> entry : value.getAdditionalProperties().entrySet()) {
                   if (entry.getValue() instanceof String)
                     obj.addProperty(entry.getKey(), (String) entry.getValue());
                   else if (entry.getValue() instanceof Number)
                     obj.addProperty(entry.getKey(), (Number) entry.getValue());
                   else if (entry.getValue() instanceof Boolean)
                     obj.addProperty(entry.getKey(), (Boolean) entry.getValue());
                   else if (entry.getValue() instanceof Character)
                     obj.addProperty(entry.getKey(), (Character) entry.getValue());
                   else {
                     obj.add(entry.getKey(), gson.toJsonTree(entry.getValue()).getAsJsonObject());
                   }
                 }
               }
               elementAdapter.write(out, obj);
             }
  
             @Override
             public AlipayMarketingActivityOrdervoucherUseModel read(JsonReader in) throws IOException {
               JsonObject jsonObj = elementAdapter.read(in).getAsJsonObject();
               validateJsonObject(jsonObj);
               // store additional fields in the deserialized instance
               AlipayMarketingActivityOrdervoucherUseModel instance = thisAdapter.fromJsonTree(jsonObj);
               for (Map.Entry<String, JsonElement> entry : jsonObj.entrySet()) {
                 if (!openapiFields.contains(entry.getKey())) {
                   if (entry.getValue().isJsonPrimitive()) { // primitive type
                     if (entry.getValue().getAsJsonPrimitive().isString())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsString());
                     else if (entry.getValue().getAsJsonPrimitive().isNumber())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsNumber());
                     else if (entry.getValue().getAsJsonPrimitive().isBoolean())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsBoolean());
                     else
                       throw new IllegalArgumentException(String.format("The field `%s` has unknown primitive type. Value: %s", entry.getKey(), entry.getValue().toString()));
                   } else { // non-primitive type
                     instance.putAdditionalProperty(entry.getKey(), gson.fromJson(entry.getValue(), HashMap.class));
                   }
                 }
               }
               return instance;
             }
  
         }.nullSafe();
      }
    }
  
   /**
    * Create an instance of AlipayMarketingActivityOrdervoucherUseModel given an JSON string
    *
    * @param jsonString JSON string
    * @return An instance of AlipayMarketingActivityOrdervoucherUseModel
    * @throws IOException if the JSON string is invalid with respect to AlipayMarketingActivityOrdervoucherUseModel
    */
    public static AlipayMarketingActivityOrdervoucherUseModel fromJson(String jsonString) throws IOException {
      return JSON.getGson().fromJson(jsonString, AlipayMarketingActivityOrdervoucherUseModel.class);
    }
  
   /**
    * Convert an instance of AlipayMarketingActivityOrdervoucherUseModel to an JSON string
    *
    * @return JSON string
    */
    public String toJson() {
      return JSON.getGson().toJson(this);
    }
  }
  
  